The first version of Ditto has just been released. It should be fully functional on most C++ compilers but lacks documentation (some documentation may be found on the site). There may also be some other problems with this initial release though the core code should be bug-free.
Ditto is a header-only C++ framework for managing dynamically updated sorted and filtered views of tables, ideally suited for GUI applications. High performance, low memory profile and STL compliant.
Ditto can be found at http://ditto.sourceforge.net